Icon for a display screen



FIG. 1 is a front view of an icon for a display screen, the broken line drawing of a display screen is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a front view of a second embodiment thereof, on an enlarged scale, the icon is shown separately for clarity of illustration;

FIG. 3 is a front view of a third embodiment thereof, on an enlarged scale, the icon is shown separately for clarity of illustration;

FIG. 4 is a front view of a fourth embodiment thereof, on an enlarged scale, the icon is shown separately for clarity of illustration;

FIG. 5 is a front view of a fifth embodiment thereof, on an enlarged scale, the icon is shown separately for clarity of illustration; and,

FIG. 6 is a front view of the embodiment shown in FIG. 5, the broken line drawing of a display screen is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a icon for display screen, as shown and described. 